| Row Key | timestamp | Column Family: mechanical | Column Family: electrical | … | |||
| column: type | column: motor | column: friction | column: speed | column: power | … | ||
| id1 | 1539576300 | {type:, motor:, friction:} | {speed:, power:} | … | |||
| id2 | 1539576330 | … | … | … | |||
| … | … | … | … | … | |||